4054009 has 2 divisors, whose sum is σ = 4054010. Its totient is φ = 4054008.

The previous prime is 4053991. The next prime is 4054019. The reversal of 4054009 is 9004504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3980025 + 73984 = 1995^2 + 272^2 .

It is a cyclic number.

It is not a de Polignac number, because 4054009 - 2¹³ = 4045817 is a prime.

4054009 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4054019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2027004 + 2027005.

It is an arithmetic number, because the mean of its divisors is an integer number (2027005).

Almost surely, 2^4054009 is an apocalyptic number.

It is an amenable number.

4054009 is a deficient number, since it is larger than the sum of its proper divisors (1).

4054009 is an equidigital number, since it uses as much as digits as its factorization.

4054009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 4054009 is about 2013.4569774395. The cubic root of 4054009 is about 159.4513630723.

Multiplying 4054009 by its sum of digits (22), we get a palindrome (89188198).

The spelling of 4054009 in words is "four million, fifty-four thousand, nine".